Improvement in machines for jointing staves



UNITE;

JULIUS O. VVOODMANSEE, OF GAR-RSVILLE, KENTUCKY.

IMPROVEMENT IN MACHINES FOR JOINTING STAVES.

Specification forming part of Letters Patent No. 150,501, dated May 5, 1874; application filed March 25, 1874.

' To all whom it may concern:

Be it known that I, J ULrUs O. .WooDMAN- SEE, of Garrsville, in the county of Livingston and State of Kentucky, have invented certain new and useful Improvements in Machine for Jointing Staves; and I do hereby declare the following to be a full, clear and exact description of the invention, sue as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

The nature of my invention relates to an improvement in stave and headjointing machines and it consists in the arrangement and combination of devices which will be more fully set forth hereafter, whereby the staves are cut at anydesired bulge and bevel, proportioning the bulge and bevel according to width of stave.

The accompanying drawings represent my invention. 7

a represents a frame of any suitable shape or construction, which is provided on its front side with a table, I), which table is made adjustable up or down at pleasure, by means of slotted ears or screws, as shown, or by any other suitable devices. Pivoted between ears projecting from the underside of the crossbar 0, which extends across the top of the machine, is the bar (1, which bar serves as a guide to the sliding knife 0, and to which the knife 0, saw or chisel f, and stationary knife 9 are secured; the knife 9 being rigidly secured at its center to the guide (I, while the saw f and knife 0 slide freely up and down,being operated by the foot-treadle h, to which they are connected by the rods 2. The ends of the sliding knife 6 are fastened to the sliding frame j, while the center is secured, to the guide at by means of a sliding guide-lug, is, so that when the guide (I is forced backward, as will be more fully described below, it curves or bends both the knives c and g backward with it, so as to suit the bulge to the proportion of the width of stave. Screwed in the sliding lug 7c is a saw or chisel or other cutting device, f,'just below the movable knife, and which moves up and down with the knife 6, and cuts the chip in two, as the edge of the pieces is being cut away, thereby facilitating the cutting of the knife. In the lower end of the guide (I are a number of perforations, by

, means of which the connecting-rod can be adquired bulge in the knives to which the stave is to be out, also gaging each end of the stave alike in width. As these levers or stops on are drawn outward, the curve or bulge in the knives c and 9 increases according to width of stave in the machine, one of the levers being provided with a handle or other device, for the purpose of opening them out-ward. These levers extend. downward, and have their lower ends secured to a rocking shaft, a, from the under side of which shaft projects a bar or lever, 0, through which are a number of perforations. By means of the perforations in the lever o and bar at, the connecting rod or link can be adjusted so as to cause the knives to assume any curve desired. The knives being flexible and being bent out of line, they act as springs toclose the levers or stop gages m inward after they have been released. in cutting the stave it is placed on top of the ta ble b, inside of the levers m, which hold the stave, and press it against the saw or chisel, when, by a downward pressure upon the treadle, the movable knife is brought down, cutting the edge of the stave to its propor tional bulge and bevel at the same time. As soon as the treadle h is released, the spring 12, which is held in position by the rods,.returns the knife 0 to position for another out. By

adjusting the outer edge of the table I) to a higher position the bevel is decreased, and vice versa, the bevel being graduated according to width of stave. The circular ridges on both sides of the slots in the table 1) form a section of the circle of a barrel. The wedgeshaped pieces 0, that rest on the circular ridges, and through which the levers or stops at pass, are for the purpose of holdin the outer edge of the stave up from the said ridges upon which they rest, while the other edge is being cut away.

VVheu it is desired to joint pieces for the head of a barrel, the conuectiu g-pin in the connecting rod or link and bar or lever 0 is taken v or stationary knife.

jointed for a head is then rested upon the top of the set-screw and the stationary knife g, and when the knife 0 is forced down it cuts the edge straight and square. The knife 0 is wider in the center than at any other point, and has a lug rigidly fastened to its rear side in the center, which contains holes for screws.

If so desired, this knife can be lowered on the frame by means of the slots in its ends, and by putting the holding-screws in other holes in the stationary lug by which the knife is secured to the guide d. By having the sharp bar or knife rigidly fastened to guide (I, and the sliding knife 0 fastened to the sliding lug k or guide (1, the two always retain The piece that is to be the same relative position, whether straight or curved. Staves of unequal Width are cut with proportional bulge and bevel without altering the machine.

Having thus described my invention, I claim- 1. Thecolnbination of a sliding flexible knife, 6, a flexible stationary knife, 9, and the bar or guide to which both are attached so as to always retain them in the same relative position, whether straight or curved, substantially as set forth.

2. The combination of the saw f, attached to the sliding lug k, guide (1, knives e g, levers m, rocking shaft n, lever 0, and connectingrod or link, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 17th day of March. 1874.

JULIUS C. YVOO DMANSEE.

NVitnesses:

, ROBERT F. AGNEW,

PRnsLY A. THRELKOLD. 

